Saduria entomon
| Saduria entomon | |
|---|---|
 | |
| Dead Saduria entomon washed up on the beach | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Subphylum: | Crustacea |
| Class: | Malacostraca |
| Order: | Isopoda |
| Family: | Chaetiliidae |
| Genus: | Saduria |
| Species: | S. entomon |
| Binomial name | |
| Saduria entomon (Linnaeus, 1758) [1] | |
Saduria entomon is a benthic isopod crustacean of the family Chaetiliidae.[1] It is distributed along the coasts of the Arctic Ocean and of the northern Pacific Ocean. It is also found in the brackish Baltic Sea, where it is considered a glacial relict.[2] Moreover it is present in a number of North European lakes, including Ladoga, Vänern and Vättern. It has been introduced into the Black Sea.[3]
Saduria entomon is one of the largest crustaceans in the Baltic Sea. The largest ones are found in the depths of the Gulf of Bothnia,[4] being almost 9 centimetres (4 in) in length.[2] S. entomon are sexually dimorphic, with males growing larger and maturing at larger sizes than females.[5] Most individuals die after reproduction; the species may be functionally semelparous, but it is probably capable of iteroparity. Its lifespan is 3 years, possibly much longer.[5]
Saduria entomon is a predator that feeds on other benthic animals, such as Monoporeia affinis. It is also a scavenger and a cannibal.[2]
References
- ↑ 1.0 1.1 "Saduria entomon (Linnaeus, 1758)". Integrated Taxonomic Information System. Retrieved February 1, 2006.
- ↑ 2.0 2.1 2.2 "Saduria entomon". Aquascope. Retrieved 20 June 2010.
- ↑ Y. Kvach (2009). "First report of Saduria (Mesidotea) entomon (Linnaeus, 1758) (Isopoda: Chaetiliidae) in the Black Sea" (PDF). Aquatic Invasions 4 (2): 393–395. doi:10.3391/ai.2009.4.2.17.
- ↑ "Kilkki". The Baltic Sea Portal (in Finnish). Retrieved 20 June 2010.
- ↑ 5.0 5.1 Haahtela, Ilpo (1990). "What do Baltic studies tell us about the isopod Saduria entomon (L.)?". Annales Zoologici Fennici 27: 269–278.